Gas-igniting device



' Feb. 2l, 1928.

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Patented Feb. 21V, 1.928.

UNITED STATES PATENT OFFICE.

i KARL SCHREER,v OF ERLANGEN, NEAR UREMBERG, vGER-MANY, ASSIGNOR TO MAX E.

BERNHARDT, 0F NEW YORK, N. Y.

GASJGNITING DEVICE.

Application 'led February 10, 1927, Serial No. 167,329, andAin` Germany February 1, 1926.

MyA invention relates to a gas igniting device, which offers with respect to the existing devices the advantages, that it has the enact shape of an automatic pistol and that itis fitted with a wooden handle whereby it 1s prevented from rusting. Further the mechanism for operating the device arranged within the interior of the barrel of the pistol 1s very simple in its construction ensuring a cheap manufacture and also a reliable working of the device.

The annexed drawing illustrates the present invention by way of example, in which Fig. 1 is a longitudinal section showing the device for operating the mechanism 1n its original position,- Fig. 2 is also a longitudinal section showing the device in its end position.

The gas igniting device has the shape of a pistol consisting of a wooden handle a and of a barrel b. Within the latter close to the muzzle a friction wheel a is arranged, against which a pyrophoric metal is pressed by means of a spring member. lFor operating the friction wheel a trigger 0 is provided and pivoted within the barrel onl a fulcrum b, which receives a horizontal reciprocating member CZ movable round a pivot e. This member is suitably shaped and provided on its under surface with an adjacent cam f, on which a curve-shaped projection g is attached, whilst the upper end of the reciprocating member is shaped to form an oblique sliding surface 71 against which bears a pivot z' guiding the reciprocating member. Further a sliding member 79 is arranged within the barrel and limited in its motion b v suitable stops. This slidng member is connected at the one end with the friction wheel b and at the other end with the trigger Z by meansof a spiral springpp. Also the sliding member 7c is provided on it-s Vrear upper endwith a sharp edge g. stop member Z is provided above the sliding member 7c and carries a tapered recess m, so that the two shoulders n and o are formed, whilst said stop member lies a lcertain distance behind the sharp edge g.

The sparking action of the igniting device is produced kby pulling the trigger c, so

that the reciprocating member d is moved in the direction of the arrow (according to Fig. 1 of the drawing) and the cam g-owing to the guiding of the pin -abuts against the sharp edge g of the sliding member 7c; by pulling the trigger still further also the sliding member c ismoved in the direction of l the arrow and the spiral spring 0 is held in tension, till'the curve-shaped projection g bears against the shoulder o of the stop member Z. Thereby the reciprocating member al is raised, so that the cam f is released from the sharp edge g of the sliding member 7c and engages in the tapered recess m whereby the motion of the reciprocating member d is limited and stopped. (According to Fig. 2 of the drawing.) vAt the same time the sliding member is released and Vreturns owing to the continued Stretching of the spiral spring with a strong jerk into its original position, whereby the friction wheel a is turned and a spark flash is produced, which appears at the muzzle of the barrel.

What I claim is: Y

j A gas igniting device comprising incombination a body having the shape of a pistol; a friction wheel arranged -turnably at the muzzle of the barrel; a trigger pivoted within the barrel; la reciprocating member connected movably with the said trigger and provided on its under surface with an adjacent cam; a curve-shapedV projection adjoining the said cam; an oblique sliding surface on the upper side of the said reciprocating member; a pin adapted so as to bear against the said sliding surface of the said reciprocating member; a sliding member arranged within t-he barrel and connected on the one end with the friction wheel and on the other endwith the trigger; a spiral spring connecting the trigger and the said sliding member; a sharp edge provided on the rear upper end of thev sliding member; a stop member attached behind and above the said sliding member;

a tapered recess forming two shoulders and arranged in the said stop member.

In testimony whereof I aiiix my signature. y

KARL SCHREER. 

